Knock-down end closing carton



June 16, 1936. H. ROSSl KNOCK-DOWN END CLOSING CARTON Filed Oct. 25, 1933 6 I e l 1:132"; 4

19 I 'IIIIIIIII'II'II'I'l'llll INVENTOR 7Y7 fiossz,

ATTORNEY.

' cartons or containers,

" the line 6-6 looking in the Patented June 16, 1936 UNITED STATES PATENTOFFlCE fl KNOCK-DOWN END'CLOBJING CARTON Y., assignor to Robert Gair Company, 1110.,

rotation of Delaware New York, N. Y., a cor- Application mm 2!. 1933, sci-l i No. 095.013

knock-down made, preferably, frompaper board and the like, and has for its principal object the provision of an integral web-end closure thereon, of a collapsible, tucking and interlocking nature.

Another feature of the structure herein disclosed relatesto the manner of scoring some of the panels forming the tuck closure and of out: scoring others of the web panels to permit the cover to bereadily collapsed to closing position, especially if made of comparatively still or heavy board, and to be readily opened, and reclosed, as often as desired.

The closure, as will be The present invention relates to more readily ascertained as the description proceeds, is comprised of a plurality of minor triangular web-forming panels scored, and cut-scored from their associate panels, and two main panels, the latter being rectangular, and forming, when in closing arrangement, locks for releasably locking all of the webs and panels when in closed position.

These and other capabilities will be apprehended as the herein description proceeds and it is obvious that modifications may be made in the structure herein without departing from the spirit hereof or the scope of the appended claims.

In the drawing,- a

Fig. 1 is a view, in elevation, of the carton with both ends closed; I

Fig. 2 is a plan view of Fig. 1;

Fig. 3 is'a fragmentary view of the carton, in perspective, showing the closing panels in operative position, as bent on the provided score lines;

Fig. 4 is a fragmentary, elevational view of the carton as viewed from the right-hand side of Fig. 1, showing the cover lock panels just before final telescopic closing;

Fig. 5 is a fragmentary view of the carton blank, before being erected into a carton, showing the scored panels and their outlines; and

Fig. 6 is an enlarged sectional view taken on direction of the arrows, Fig. 5, to better show the cut-scoring of the triangular panels.

The present carton, as in Fig. l, is of polygonal cross-section, and as shown in the blank layout of Fig, 5', comprises a plurality of side-forming panels 2 to inclusiveydefined from each other by score lines A to E inclusive, and a glue fiap 8, defined from panel 1 by a score line F, whereby panel 1 may be affixed to panel 2 by glueing as in Fig. 2.

Each side-forming panel has an integral coverforming panel defined therefrom by thecommon score line G, Fig. 5.

The side-forming panels are defined from each other by vertical score lines A to F inclusive Fig. 5, and these same score lines define the coverforming webs and panels.

from by a score 13 Claims. (Cl. 229-37) Each cover-forming panel is defined from its adjacent associate panel by score lines or by cut-score lines. Rectangular panel 9 has a semitriangular web It defined therefrom by score line A; web It has, cut-scored therefrom on its inside face, by cut-score a, a full triangular panel III, which latter panel has scored therefrom by score line B, a'semi-triangular web web has, cut-scored therefrom by cut-score b on its inside face a full triangular panel ||,-this its inside face by a cut-score c, a semi-triangular n, this latter latter panel in turn has, cut-scored therefrom on web l8. Web I8 is defined from rectangular lock panel l2, by score line C on its one side and lock panel l2 on its opposite side is defined'from semi-triangular web I 9, by a score line D. Web 9 is defined from triangular panel i3 by a cut-score d. on its inside face semi-triangular web 2|] by a cut-score line e on its inside face. Web 'is defined from triangu- 19.! panel II by score line E and this latter panel is defined from a semi-triangular. web 2| by on its inside face. Web 2| has cut-score line I, a glue flap l5, similar to glue flap 8, defined thereline F. When the carton is glued to assembly, flap I 5 is attached to theinside face of panel 9, as at Fig. 3.

When the carton is glue-assembled,'it can be collapsed fiat on its opposing score lines B and E, and is soshipped to the consumer in bundles. All cut-score lines defining the cover-forming panels and webs from each other are all located on the inside faces of the walls forming the cover panels, when the carton is erected. The reason for this is that each of the panels so cutand panel ii! is defined from scored, are bent on the cut-score lines in a direction reverse to those of the scored lined panels, with their outer faces adjacent to one another, when they lie in covering, superposed relation to each other, on the carton. The cut joint aflorded by the cut-scores predisposesv the inwardly drawn triangular panels to automatically take their respective closing positions relative to the web-like, semi-triangular panels It to 2| inclusive. In effect, panels 9 to M are closure panels while the semi-tringular panelslB to 2| inclusive act as webs between the closure panels, so that in the act of closing the panels as in Fig. 3, the webs draw the closure panels into orderly, closing relation to one another.

In cut-scoring the web panels from their associate panels, as described, the cut-scores, as at c and b, Fig. 6, are cut deeply into the paper board nearly to the outside liner thereof. Thus the cut-score lines, as described are weakened and dispose the so defined v into desired cenformity and thereafter permit the folded panels to lie closely together, when in carton-closing position.

It will be noted that, withjhe exception of my 'that panels I2,

and ll.

panels .9, H and [3, the panels all have rounded outer ends. It will be further noted that panels 9 and 2| are longer, from the score line G, than any of the other panels; it will further be noted 18 and 19, are a little shorter than panels 9 and 2|, and that panels H), H, l3,

ll, H and 20 are shorter than panels l2, l8 and I9. This is because, as the panels are so scored, and thus disposed to automatically and sequentially assume their related positions in a fixed sequence, as will now be explained.

In closing the webbed cover over the carton, with the panel 5 facing the user, the panels l0 and H, are simultaneously bent on their score lines B and E respectively to bring the web panels l1 and 20, respectively flat against said panels Hi This is done by pinching the panels l0 and I4 against panels I! and 20, this operation being shown, partly completed in Fig. 3.

' After bringing panels Ill-I4, l1 and 20 togather, they are, both simultaneously, swung downwardly towards the closing position, on score lines D ,and e, and thus, reversely, or inwardly folding the panels H and I3. Thisaction draws in webs l8 and I9 and with them inner closure panel l2. This action, further, draws in webs l6 and 2|, and with it top, outer closure panel 9.

Further downward movement of panels I0 and I4 brings the ends of inner shorter and narrower closure panel l2 and its associate webs l8 and B into the opening formed by the folded outer, longer and wider closure panel 9 and its associate webs I6 and 2 l about as indicated in Fig. 4, until finally, the outer rounded ends of the folded panel l2 and webs I8, I9 telescopically pass into the interior of the folded outer longer closure panel 9 and its associate webs l6 and i8; a final pressure completes the closing of the carton, which remains closed due to the telescopic lock of the closure panels 9 and I2 and their associate webs, as illustrated in Fig. 2. Thus, the rounded corners of the panels permit of smooth infolding of the panels in closing the same over the carton.

When the carton is thus closed, it is proof against accidental opening because all of the coacting webs and panels are overlaid by portions of the associate panels, and are all looked in this position by the telescopic lock of the cover panels 9 and I2.

To .reopen the carton, the side edges A-F, Fig. 1, of the cover panel 9 are lifted, thus drawing up both outer cover panel 9 and inner cover panel I2, so that as they reach the positions shown in Fig. 4, the entire cover is instantly released and opened up to the full area of the carton interior.

What I claim is:

1. A hexagonal carton of .foldable material comprising six integral side-forming panels connected to form a body by a glue flap, two opposing side panels of said body having substantially rectangular closing panels foldably attached thereto, a second pair of opposing side panels having a triangular panel and triangular webs foldably connected together and a third set of opposing side panels having a substantially triangular panel and web foldably connected thereto, one of said last webs having a glue fiap.

2. A single blank of foldable material for forming a hexagonal carton, comprising a body portion having six sides and a glue flap, for forming the six sides of the carton, said sides and flap being defined from one another by body score lines, and a plurality of infolding cover-forming and end-closing webs; panels and a cover glue flap, said webs and panel being defined from'said side-forming panels by a common score line, one of the terminal body panels having a substantially rectangular cover panel, the next adjacent body panel having a substantially triangular cover panel and web thereon, the next adjacent body panel having two substantially triangular webs and one practically triangular panel thereon, the next adjacent body panel having a substantially rectangular cover panel thereon, the next adjacent body panel having two substantially triangular webs and one triangular cover panel thereon, the next adjacent body panel having a substantially triangular cover panel and web thereon, said cover glue flap being on said lastnoted web, all of said latter webs, panels and fiap being defined from one another by scoring.

3. A single blank of foldable material for forming a hexagonal carton, comprising a body portion having six sides and a glue flap, for forming the sides of the carton, said sides and flap being defined from one another by body score lines, and a plurality of infolding cover-forming and endolosing webs and panels and a cover glue flap, said webs and panels being defined from said sideforming panels by a common score line, one of the terminal body panels having a substantially rectangular cover panel, the next adjacent body panel having a substantially triangular cover panel and web thereon, the next adjacent body panel having two substantially triangular webs and one practically triangular panel thereon, the next adjacent-body panel having a substantially rectangular cover panel thereon, the next adjacent body panel having two substantially triangular webs and one triangular cover panel thereon, the next adjacent body panel having a substantially triangular cover panel and web thereon, said cover glue flap being on said lastnoted web, all of said webs and panels being defined from one another by scoring, the scoring between all of said webs and their associate cover panels being cut scores.

4. A carton formed from one blank of paperboard comprising a body having a relatively narrow sidewall, an oppose-d wall wider than the first wall, two pairs of interposed side walls connecting the narrow and wide walls; and a continuous band extending from said walls at one end of the carton to lockingly close the latter thereat; said band including foldable panels which are P the same width as the respective walls, the panels of the interposed walls having scores therein and being formed into foldable portions, whereby the ends of the wide panel and its associated portions may embrace the ends of the narrow panel and the associated portions thereof.

5. A carton formed from a blank of material comprising a body having a narrow side wall, an opposed wall wider than the first wall, two pairs of interposed side walls connecting the narrow and wide walls, said body being of modified hexagonal form, and a band extending from said walls at one end of the carton and closing the latter thereat; said band including inwardly folded rectangular sections which are the same width as the respective walls, one end of the wide section being disposed over an end of the narrow section, the sections of said interposed walls having score lines therein and being formed into foldable panels andwebs, certain of said webs being continuous with the respective narrow and wide sections, so that said wide end and its associated webs may telescopically embrace said narrow end and the associated webs thereof in releasable holding relation.

6. A carton made from one sheet of material which is provided with fold lines to form a body comprising a rectangular side wall, a relatively wide opposed rectangular wall; coacting interposed rectangular side walls; and a foldable band extending from said walls at one end of the carton for closing the latter thereat; said band including sections which are the same width as the respective walls, the section of the narrow wall having rounded corners at its free end; the sections of the interposed walls consisting of tapering panels and webs, certain of said webs being extended at one of their respective sides from the narrow and wide sections and having also round corner at their free end, so that said wide section and its associated webs when partly folded inwardly may form a pocket to receive the rounded portions of the narrow section and its associated webs, whereby to lockingly engage said sections, the free ends of the said panels being disposed below the narrow and wide sections.

7. A carton made from one sheet of material which is provided with fold lines to form a body comprising a relatively narrow side wall, an opposed wall wider than the first wall, coacting interposed walls, one of said latter walls having thereon a glue flap which is attached to said wide wall; and a band extending from said walls at one end of the carton for closing the latter thereat: said band including also a glue flap and having sections which are the same width as the respective walls, the section of the narrow wall having rounded corners at its free end; the sections of the interposed walls consisting of foldable panels and webs, certain of which are also provided with rounded corners at their free ends, certain of said webs being extended at one of their respective sides from the narrow and wide sections, so that the ends of said wide section and its associated webs when partly folded inwardly may receive the ends of the narrow section and its associated webs, whereby to embrace said sections when fully closed inwardly, the free ends of said posed below said narrow and wide sections. 8. A closure for a carton having six rectangular integral side walls, said closure comprising a band transversely of the band which are approximately equal to the greater radius of the carton, said I later fold lines defining panels and webs in said members; and two opposed inwardly foldable members disposed between said pairs of members and having than said radius, whereby when the.last-mentioned members are folded inwardly their ends may overlap, so as to cover the ends of the firstmentioned members.

9. A blank of material for forming a carton including a body having six side walls, and an end closure comprising a band having two plain inwardly foldable sections, and two pairs of interposed sections, said sections being extended from said walls and having scores or fold lines therebetween, there also being fold lines between said walls and said sections, and fold lines between panels and webs being dis- I dimensions which are greater 3 the respective walls, said latter lines being linear with the lines between said sections, and the blank being bendable on said lines; and oblique cut scores formed on or struck into the inner faces of said interposed sections so as to facilitate bending the material thereat, whereby said interposed sections may be partly overlapped in substantially flat portions partly below or inwardly of said plain sections;

10. The herein described blank of material for forming a carton including a body having six side walls, and an end closure comprising a band having two plain inwardly foldable sections and two pairs of interposed sections, there being fold lines in the blank whereby .to render said walls and said sections individually bendable; said interposed sections having oblique cut scores in their inner faces, whereby said interposed sections may be partly overlapped in substantially fiat portions or members partly below or inwardly of said plain 0 members including foldable panels and webs; and I two opposed practically rectangular {members disposed between the respectivepairs of members, one of said rectangular members having a length dimension greater than that of said radius, said latter length dimension being also greater than that of the opposite rectangular member, the longer rectangular member having its .end overlapping the end of the other rectangular member, whereby the overlapped ends may cover the ends of said pairs of members.

12. A carton formed from an integral blank of foldable material comprising a hexagonal body including six side panels'having' continuous therewith at one end of the carton coacting sections which form a band, said band providing an end closure, substantially as described.

13. A polygonal sided container comprising a.

opposite sides being longer than one half the straight side connected with said last named triangular folds and having their opposite side converging outwardly, and triangular folds connected with said converging sides and with the other locking end fold, the inward folding of said folds having a straight and converging side causing the infolding of the triangular folds connected with the locking folds so that one looking end fold and its triangular folds will enter the pocket formed by the the triangular pocket-forming folds connected with it.

' HARRY ROSSI.

other locking end fold and 

